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Finding the Fourth Proportional to 309,320.56, 426,862.28 and 175,184.56

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Solution

The fourth proportional to 309,320.56, 426,862.28 and 175,184.56 is: 241,754.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,320.56 : 426,862.28 = 175,184.56 : x
  2. Step 2: Convert to fraction form
    309,320.56/426,862.28 = 175,184.56/x
  3. Step 3: Cross multiply
    309,320.56x = 426,862.28 × 175,184.56
  4. Step 4: Simplify right side
    309,320.56x = 74,779,680,702.40
  5. Step 5: Solve for x
    x = 74,779,680,702.40/309,320.56
  6. Step 6: Final answer
    x = 241,754.64

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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.