Home / 426,137.04-639,039.51-159,752.25

Finding the Fourth Proportional to 426,137.04, 639,039.51 and 159,752.25

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Solution

The fourth proportional to 426,137.04, 639,039.51 and 159,752.25 is: 239,566.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,137.04 : 639,039.51 = 159,752.25 : x
  2. Step 2: Convert to fraction form
    426,137.04/639,039.51 = 159,752.25/x
  3. Step 3: Cross multiply
    426,137.04x = 639,039.51 × 159,752.25
  4. Step 4: Simplify right side
    426,137.04x = 102,087,999,561.40
  5. Step 5: Solve for x
    x = 102,087,999,561.40/426,137.04
  6. Step 6: Final answer
    x = 239,566.13

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1.5x scale

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.