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Finding the Fourth Proportional to 308,394.17, 425,455.04 and 240,292.91

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Solution

The fourth proportional to 308,394.17, 425,455.04 and 240,292.91 is: 331,503.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,394.17 : 425,455.04 = 240,292.91 : x
  2. Step 2: Convert to fraction form
    308,394.17/425,455.04 = 240,292.91/x
  3. Step 3: Cross multiply
    308,394.17x = 425,455.04 × 240,292.91
  4. Step 4: Simplify right side
    308,394.17x = 102,233,830,746.22
  5. Step 5: Solve for x
    x = 102,233,830,746.22/308,394.17
  6. Step 6: Final answer
    x = 331,503.77

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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.