Home / 272,143.80-375,307.20-170,136.72

Finding the Fourth Proportional to 272,143.80, 375,307.20 and 170,136.72

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Solution

The fourth proportional to 272,143.80, 375,307.20 and 170,136.72 is: 234,631.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,143.80 : 375,307.20 = 170,136.72 : x
  2. Step 2: Convert to fraction form
    272,143.80/375,307.20 = 170,136.72/x
  3. Step 3: Cross multiply
    272,143.80x = 375,307.20 × 170,136.72
  4. Step 4: Simplify right side
    272,143.80x = 63,853,536,000.38
  5. Step 5: Solve for x
    x = 63,853,536,000.38/272,143.80
  6. Step 6: Final answer
    x = 234,631.60

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1.5x scale

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.