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Finding the Fourth Proportional to 371,287.59, 556,926.53 and 90,807.27

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Solution

The fourth proportional to 371,287.59, 556,926.53 and 90,807.27 is: 136,209.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,287.59 : 556,926.53 = 90,807.27 : x
  2. Step 2: Convert to fraction form
    371,287.59/556,926.53 = 90,807.27/x
  3. Step 3: Cross multiply
    371,287.59x = 556,926.53 × 90,807.27
  4. Step 4: Simplify right side
    371,287.59x = 50,572,977,325.84
  5. Step 5: Solve for x
    x = 50,572,977,325.84/371,287.59
  6. Step 6: Final answer
    x = 136,209.72

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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.