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Finding the Fourth Proportional to 495,168.36, 683,348.72 and 280,303.98

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Solution

The fourth proportional to 495,168.36, 683,348.72 and 280,303.98 is: 386,828.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,168.36 : 683,348.72 = 280,303.98 : x
  2. Step 2: Convert to fraction form
    495,168.36/683,348.72 = 280,303.98/x
  3. Step 3: Cross multiply
    495,168.36x = 683,348.72 × 280,303.98
  4. Step 4: Simplify right side
    495,168.36x = 191,545,364,542.39
  5. Step 5: Solve for x
    x = 191,545,364,542.39/495,168.36
  6. Step 6: Final answer
    x = 386,828.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.