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Finding the Fourth Proportional to 502,421.60, 753,632.40 and 186,813.20

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Solution

The fourth proportional to 502,421.60, 753,632.40 and 186,813.20 is: 280,219.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,421.60 : 753,632.40 = 186,813.20 : x
  2. Step 2: Convert to fraction form
    502,421.60/753,632.40 = 186,813.20/x
  3. Step 3: Cross multiply
    502,421.60x = 753,632.40 × 186,813.20
  4. Step 4: Simplify right side
    502,421.60x = 140,788,480,267.68
  5. Step 5: Solve for x
    x = 140,788,480,267.68/502,421.60
  6. Step 6: Final answer
    x = 280,219.80

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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.