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Finding the Fourth Proportional to 402,901.94, 602,861.97 and 243,070.45

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Solution

The fourth proportional to 402,901.94, 602,861.97 and 243,070.45 is: 363,706.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,901.94 : 602,861.97 = 243,070.45 : x
  2. Step 2: Convert to fraction form
    402,901.94/602,861.97 = 243,070.45/x
  3. Step 3: Cross multiply
    402,901.94x = 602,861.97 × 243,070.45
  4. Step 4: Simplify right side
    402,901.94x = 146,537,930,335.79
  5. Step 5: Solve for x
    x = 146,537,930,335.79/402,901.94
  6. Step 6: Final answer
    x = 363,706.19

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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.