Home / 219,031.60-328,547.40-140,234.80

Finding the Fourth Proportional to 219,031.60, 328,547.40 and 140,234.80

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Solution

The fourth proportional to 219,031.60, 328,547.40 and 140,234.80 is: 210,352.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,031.60 : 328,547.40 = 140,234.80 : x
  2. Step 2: Convert to fraction form
    219,031.60/328,547.40 = 140,234.80/x
  3. Step 3: Cross multiply
    219,031.60x = 328,547.40 × 140,234.80
  4. Step 4: Simplify right side
    219,031.60x = 46,073,778,929.52
  5. Step 5: Solve for x
    x = 46,073,778,929.52/219,031.60
  6. Step 6: Final answer
    x = 210,352.20

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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.