Home / 242,313.28-334,423.67-138,987.79

Finding the Fourth Proportional to 242,313.28, 334,423.67 and 138,987.79

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Solution

The fourth proportional to 242,313.28, 334,423.67 and 138,987.79 is: 191,821.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,313.28 : 334,423.67 = 138,987.79 : x
  2. Step 2: Convert to fraction form
    242,313.28/334,423.67 = 138,987.79/x
  3. Step 3: Cross multiply
    242,313.28x = 334,423.67 × 138,987.79
  4. Step 4: Simplify right side
    242,313.28x = 46,480,806,816.99
  5. Step 5: Solve for x
    x = 46,480,806,816.99/242,313.28
  6. Step 6: Final answer
    x = 191,821.13

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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.