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Finding the Fourth Proportional to 439,988.67, 607,184.37 and 238,784.67

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Solution

The fourth proportional to 439,988.67, 607,184.37 and 238,784.67 is: 329,522.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,988.67 : 607,184.37 = 238,784.67 : x
  2. Step 2: Convert to fraction form
    439,988.67/607,184.37 = 238,784.67/x
  3. Step 3: Cross multiply
    439,988.67x = 607,184.37 × 238,784.67
  4. Step 4: Simplify right side
    439,988.67x = 144,986,319,419.61
  5. Step 5: Solve for x
    x = 144,986,319,419.61/439,988.67
  6. Step 6: Final answer
    x = 329,522.85

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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.