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Finding the Fourth Proportional to 302,620.80, 453,931.20 and 282,937.80

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Solution

The fourth proportional to 302,620.80, 453,931.20 and 282,937.80 is: 424,406.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,620.80 : 453,931.20 = 282,937.80 : x
  2. Step 2: Convert to fraction form
    302,620.80/453,931.20 = 282,937.80/x
  3. Step 3: Cross multiply
    302,620.80x = 453,931.20 × 282,937.80
  4. Step 4: Simplify right side
    302,620.80x = 128,434,295,079.36
  5. Step 5: Solve for x
    x = 128,434,295,079.36/302,620.80
  6. Step 6: Final answer
    x = 424,406.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.