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Finding the Fourth Proportional to 315,320.34, 472,967.28 and 146,782.74

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Solution

The fourth proportional to 315,320.34, 472,967.28 and 146,782.74 is: 220,167.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,320.34 : 472,967.28 = 146,782.74 : x
  2. Step 2: Convert to fraction form
    315,320.34/472,967.28 = 146,782.74/x
  3. Step 3: Cross multiply
    315,320.34x = 472,967.28 × 146,782.74
  4. Step 4: Simplify right side
    315,320.34x = 69,423,433,288.75
  5. Step 5: Solve for x
    x = 69,423,433,288.75/315,320.34
  6. Step 6: Final answer
    x = 220,167.95

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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.