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Finding the Fourth Proportional to 356,962.61, 535,445.78 and 120,307.34

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Solution

The fourth proportional to 356,962.61, 535,445.78 and 120,307.34 is: 180,461.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,962.61 : 535,445.78 = 120,307.34 : x
  2. Step 2: Convert to fraction form
    356,962.61/535,445.78 = 120,307.34/x
  3. Step 3: Cross multiply
    356,962.61x = 535,445.78 × 120,307.34
  4. Step 4: Simplify right side
    356,962.61x = 64,418,058,243.10
  5. Step 5: Solve for x
    x = 64,418,058,243.10/356,962.61
  6. Step 6: Final answer
    x = 180,461.64

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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.