Home / 249,649.74-374,287.50-81,069.30

Finding the Fourth Proportional to 249,649.74, 374,287.50 and 81,069.30

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Solution

The fourth proportional to 249,649.74, 374,287.50 and 81,069.30 is: 121,543.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,649.74 : 374,287.50 = 81,069.30 : x
  2. Step 2: Convert to fraction form
    249,649.74/374,287.50 = 81,069.30/x
  3. Step 3: Cross multiply
    249,649.74x = 374,287.50 × 81,069.30
  4. Step 4: Simplify right side
    249,649.74x = 30,343,225,623.75
  5. Step 5: Solve for x
    x = 30,343,225,623.75/249,649.74
  6. Step 6: Final answer
    x = 121,543.19

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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.