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Finding the Fourth Proportional to 478,303.24, 717,556.06 and 158,437

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Solution

The fourth proportional to 478,303.24, 717,556.06 and 158,437 is: 237,689.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,303.24 : 717,556.06 = 158,437 : x
  2. Step 2: Convert to fraction form
    478,303.24/717,556.06 = 158,437/x
  3. Step 3: Cross multiply
    478,303.24x = 717,556.06 × 158,437
  4. Step 4: Simplify right side
    478,303.24x = 113,687,429,478.22
  5. Step 5: Solve for x
    x = 113,687,429,478.22/478,303.24
  6. Step 6: Final answer
    x = 237,689.02

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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.