Home / 276,875.08-415,021.02-143,613.88

Finding the Fourth Proportional to 276,875.08, 415,021.02 and 143,613.88

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Solution

The fourth proportional to 276,875.08, 415,021.02 and 143,613.88 is: 215,269.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,875.08 : 415,021.02 = 143,613.88 : x
  2. Step 2: Convert to fraction form
    276,875.08/415,021.02 = 143,613.88/x
  3. Step 3: Cross multiply
    276,875.08x = 415,021.02 × 143,613.88
  4. Step 4: Simplify right side
    276,875.08x = 59,602,778,963.76
  5. Step 5: Solve for x
    x = 59,602,778,963.76/276,875.08
  6. Step 6: Final answer
    x = 215,269.57

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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.