Home / 402,341.45-555,000.26-251,176.01

Finding the Fourth Proportional to 402,341.45, 555,000.26 and 251,176.01

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Solution

The fourth proportional to 402,341.45, 555,000.26 and 251,176.01 is: 346,478.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,341.45 : 555,000.26 = 251,176.01 : x
  2. Step 2: Convert to fraction form
    402,341.45/555,000.26 = 251,176.01/x
  3. Step 3: Cross multiply
    402,341.45x = 555,000.26 × 251,176.01
  4. Step 4: Simplify right side
    402,341.45x = 139,402,746,824.88
  5. Step 5: Solve for x
    x = 139,402,746,824.88/402,341.45
  6. Step 6: Final answer
    x = 346,478.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.