Home / 426,124.08-639,430.34-173,357.91

Finding the Fourth Proportional to 426,124.08, 639,430.34 and 173,357.91

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Solution

The fourth proportional to 426,124.08, 639,430.34 and 173,357.91 is: 260,136.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,124.08 : 639,430.34 = 173,357.91 : x
  2. Step 2: Convert to fraction form
    426,124.08/639,430.34 = 173,357.91/x
  3. Step 3: Cross multiply
    426,124.08x = 639,430.34 × 173,357.91
  4. Step 4: Simplify right side
    426,124.08x = 110,850,307,332.99
  5. Step 5: Solve for x
    x = 110,850,307,332.99/426,124.08
  6. Step 6: Final answer
    x = 260,136.22

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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.