Home / 402,441.12-555,137.50-251,275.68

Finding the Fourth Proportional to 402,441.12, 555,137.50 and 251,275.68

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Solution

The fourth proportional to 402,441.12, 555,137.50 and 251,275.68 is: 346,616.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,441.12 : 555,137.50 = 251,275.68 : x
  2. Step 2: Convert to fraction form
    402,441.12/555,137.50 = 251,275.68/x
  3. Step 3: Cross multiply
    402,441.12x = 555,137.50 × 251,275.68
  4. Step 4: Simplify right side
    402,441.12x = 139,492,552,806
  5. Step 5: Solve for x
    x = 139,492,552,806/402,441.12
  6. Step 6: Final answer
    x = 346,616.05

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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.