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Finding the Fourth Proportional to 272,000.19, 375,355.29 and 151,139.28

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Solution

The fourth proportional to 272,000.19, 375,355.29 and 151,139.28 is: 208,569.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,000.19 : 375,355.29 = 151,139.28 : x
  2. Step 2: Convert to fraction form
    272,000.19/375,355.29 = 151,139.28/x
  3. Step 3: Cross multiply
    272,000.19x = 375,355.29 × 151,139.28
  4. Step 4: Simplify right side
    272,000.19x = 56,730,928,274.79
  5. Step 5: Solve for x
    x = 56,730,928,274.79/272,000.19
  6. Step 6: Final answer
    x = 208,569.44

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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.