Home / 245,707.42-339,020.14-138,238.24

Finding the Fourth Proportional to 245,707.42, 339,020.14 and 138,238.24

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Solution

The fourth proportional to 245,707.42, 339,020.14 and 138,238.24 is: 190,737.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,707.42 : 339,020.14 = 138,238.24 : x
  2. Step 2: Convert to fraction form
    245,707.42/339,020.14 = 138,238.24/x
  3. Step 3: Cross multiply
    245,707.42x = 339,020.14 × 138,238.24
  4. Step 4: Simplify right side
    245,707.42x = 46,865,547,478.15
  5. Step 5: Solve for x
    x = 46,865,547,478.15/245,707.42
  6. Step 6: Final answer
    x = 190,737.21

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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.