Home / 243,750.13-336,365.21-141,778.51

Finding the Fourth Proportional to 243,750.13, 336,365.21 and 141,778.51

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Solution

The fourth proportional to 243,750.13, 336,365.21 and 141,778.51 is: 195,648.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,750.13 : 336,365.21 = 141,778.51 : x
  2. Step 2: Convert to fraction form
    243,750.13/336,365.21 = 141,778.51/x
  3. Step 3: Cross multiply
    243,750.13x = 336,365.21 × 141,778.51
  4. Step 4: Simplify right side
    243,750.13x = 47,689,357,803.17
  5. Step 5: Solve for x
    x = 47,689,357,803.17/243,750.13
  6. Step 6: Final answer
    x = 195,648.55

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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.