Home / 253,439.04-349,708.24-153,931.88

Finding the Fourth Proportional to 253,439.04, 349,708.24 and 153,931.88

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Solution

The fourth proportional to 253,439.04, 349,708.24 and 153,931.88 is: 212,403.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,439.04 : 349,708.24 = 153,931.88 : x
  2. Step 2: Convert to fraction form
    253,439.04/349,708.24 = 153,931.88/x
  3. Step 3: Cross multiply
    253,439.04x = 349,708.24 × 153,931.88
  4. Step 4: Simplify right side
    253,439.04x = 53,831,244,701.32
  5. Step 5: Solve for x
    x = 53,831,244,701.32/253,439.04
  6. Step 6: Final answer
    x = 212,403.13

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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.