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Finding the Fourth Proportional to 245,953.70, 339,417.23 and 138,525.52

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Solution

The fourth proportional to 245,953.70, 339,417.23 and 138,525.52 is: 191,165.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,953.70 : 339,417.23 = 138,525.52 : x
  2. Step 2: Convert to fraction form
    245,953.70/339,417.23 = 138,525.52/x
  3. Step 3: Cross multiply
    245,953.70x = 339,417.23 × 138,525.52
  4. Step 4: Simplify right side
    245,953.70x = 47,017,948,282.71
  5. Step 5: Solve for x
    x = 47,017,948,282.71/245,953.70
  6. Step 6: Final answer
    x = 191,165.85

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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.