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Finding the Fourth Proportional to 316,524, 474,786 and 94,908

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Solution

The fourth proportional to 316,524, 474,786 and 94,908 is: 142,362

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,524 : 474,786 = 94,908 : x
  2. Step 2: Convert to fraction form
    316,524/474,786 = 94,908/x
  3. Step 3: Cross multiply
    316,524x = 474,786 × 94,908
  4. Step 4: Simplify right side
    316,524x = 45,060,989,688
  5. Step 5: Solve for x
    x = 45,060,989,688/316,524
  6. Step 6: Final answer
    x = 142,362

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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.