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Finding the Fourth Proportional to 315,242.55, 472,828.86 and 112,830.53

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Solution

The fourth proportional to 315,242.55, 472,828.86 and 112,830.53 is: 169,233.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,242.55 : 472,828.86 = 112,830.53 : x
  2. Step 2: Convert to fraction form
    315,242.55/472,828.86 = 112,830.53/x
  3. Step 3: Cross multiply
    315,242.55x = 472,828.86 × 112,830.53
  4. Step 4: Simplify right side
    315,242.55x = 53,349,528,508.95
  5. Step 5: Solve for x
    x = 53,349,528,508.95/315,242.55
  6. Step 6: Final answer
    x = 169,233.27

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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.