Home / 349,985.60-524,632.80-172,347.20

Finding the Fourth Proportional to 349,985.60, 524,632.80 and 172,347.20

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Solution

The fourth proportional to 349,985.60, 524,632.80 and 172,347.20 is: 258,350.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,985.60 : 524,632.80 = 172,347.20 : x
  2. Step 2: Convert to fraction form
    349,985.60/524,632.80 = 172,347.20/x
  3. Step 3: Cross multiply
    349,985.60x = 524,632.80 × 172,347.20
  4. Step 4: Simplify right side
    349,985.60x = 90,418,994,108.16
  5. Step 5: Solve for x
    x = 90,418,994,108.16/349,985.60
  6. Step 6: Final answer
    x = 258,350.61

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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.