Home / 288,514.05-432,730.76-98,971.32

Finding the Fourth Proportional to 288,514.05, 432,730.76 and 98,971.32

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Solution

The fourth proportional to 288,514.05, 432,730.76 and 98,971.32 is: 148,443.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,514.05 : 432,730.76 = 98,971.32 : x
  2. Step 2: Convert to fraction form
    288,514.05/432,730.76 = 98,971.32/x
  3. Step 3: Cross multiply
    288,514.05x = 432,730.76 × 98,971.32
  4. Step 4: Simplify right side
    288,514.05x = 42,827,933,215.58
  5. Step 5: Solve for x
    x = 42,827,933,215.58/288,514.05
  6. Step 6: Final answer
    x = 148,443.14

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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.