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Finding the Fourth Proportional to 495,210.56, 683,390.56 and 268,856.08

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Solution

The fourth proportional to 495,210.56, 683,390.56 and 268,856.08 is: 371,021.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,210.56 : 683,390.56 = 268,856.08 : x
  2. Step 2: Convert to fraction form
    495,210.56/683,390.56 = 268,856.08/x
  3. Step 3: Cross multiply
    495,210.56x = 683,390.56 × 268,856.08
  4. Step 4: Simplify right side
    495,210.56x = 183,733,707,070.61
  5. Step 5: Solve for x
    x = 183,733,707,070.61/495,210.56
  6. Step 6: Final answer
    x = 371,021.38

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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.