Home / 435,746.40-653,619.60-140,258.40

Finding the Fourth Proportional to 435,746.40, 653,619.60 and 140,258.40

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Solution

The fourth proportional to 435,746.40, 653,619.60 and 140,258.40 is: 210,387.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,746.40 : 653,619.60 = 140,258.40 : x
  2. Step 2: Convert to fraction form
    435,746.40/653,619.60 = 140,258.40/x
  3. Step 3: Cross multiply
    435,746.40x = 653,619.60 × 140,258.40
  4. Step 4: Simplify right side
    435,746.40x = 91,675,639,304.64
  5. Step 5: Solve for x
    x = 91,675,639,304.64/435,746.40
  6. Step 6: Final answer
    x = 210,387.60

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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.