Home / 245,655.16-339,000.19-138,225.13

Finding the Fourth Proportional to 245,655.16, 339,000.19 and 138,225.13

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Solution

The fourth proportional to 245,655.16, 339,000.19 and 138,225.13 is: 190,748.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,655.16 : 339,000.19 = 138,225.13 : x
  2. Step 2: Convert to fraction form
    245,655.16/339,000.19 = 138,225.13/x
  3. Step 3: Cross multiply
    245,655.16x = 339,000.19 × 138,225.13
  4. Step 4: Simplify right side
    245,655.16x = 46,858,345,332.77
  5. Step 5: Solve for x
    x = 46,858,345,332.77/245,655.16
  6. Step 6: Final answer
    x = 190,748.47

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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.