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Finding the Fourth Proportional to 402,250.80, 602,857.80 and 308,290.80

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Solution

The fourth proportional to 402,250.80, 602,857.80 and 308,290.80 is: 462,038.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,250.80 : 602,857.80 = 308,290.80 : x
  2. Step 2: Convert to fraction form
    402,250.80/602,857.80 = 308,290.80/x
  3. Step 3: Cross multiply
    402,250.80x = 602,857.80 × 308,290.80
  4. Step 4: Simplify right side
    402,250.80x = 185,855,513,448.24
  5. Step 5: Solve for x
    x = 185,855,513,448.24/402,250.80
  6. Step 6: Final answer
    x = 462,038.89

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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.