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Finding the Fourth Proportional to 452,875.40, 679,140.30 and 137,227.40

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Solution

The fourth proportional to 452,875.40, 679,140.30 and 137,227.40 is: 205,788.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,875.40 : 679,140.30 = 137,227.40 : x
  2. Step 2: Convert to fraction form
    452,875.40/679,140.30 = 137,227.40/x
  3. Step 3: Cross multiply
    452,875.40x = 679,140.30 × 137,227.40
  4. Step 4: Simplify right side
    452,875.40x = 93,196,657,604.22
  5. Step 5: Solve for x
    x = 93,196,657,604.22/452,875.40
  6. Step 6: Final answer
    x = 205,788.74

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1.5x scale

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.