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Finding the Fourth Proportional to 288,031.60, 432,047.40 and 228,545.20

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Solution

The fourth proportional to 288,031.60, 432,047.40 and 228,545.20 is: 342,817.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,031.60 : 432,047.40 = 228,545.20 : x
  2. Step 2: Convert to fraction form
    288,031.60/432,047.40 = 228,545.20/x
  3. Step 3: Cross multiply
    288,031.60x = 432,047.40 × 228,545.20
  4. Step 4: Simplify right side
    288,031.60x = 98,742,359,442.48
  5. Step 5: Solve for x
    x = 98,742,359,442.48/288,031.60
  6. Step 6: Final answer
    x = 342,817.80

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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.