Home / 305,448.32-457,988.34-136,938.18

Finding the Fourth Proportional to 305,448.32, 457,988.34 and 136,938.18

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Solution

The fourth proportional to 305,448.32, 457,988.34 and 136,938.18 is: 205,324.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,448.32 : 457,988.34 = 136,938.18 : x
  2. Step 2: Convert to fraction form
    305,448.32/457,988.34 = 136,938.18/x
  3. Step 3: Cross multiply
    305,448.32x = 457,988.34 × 136,938.18
  4. Step 4: Simplify right side
    305,448.32x = 62,716,089,740.82
  5. Step 5: Solve for x
    x = 62,716,089,740.82/305,448.32
  6. Step 6: Final answer
    x = 205,324.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.