Home / 253,215.02-349,397.85-145,764.21

Finding the Fourth Proportional to 253,215.02, 349,397.85 and 145,764.21

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Solution

The fourth proportional to 253,215.02, 349,397.85 and 145,764.21 is: 201,132.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,215.02 : 349,397.85 = 145,764.21 : x
  2. Step 2: Convert to fraction form
    253,215.02/349,397.85 = 145,764.21/x
  3. Step 3: Cross multiply
    253,215.02x = 349,397.85 × 145,764.21
  4. Step 4: Simplify right side
    253,215.02x = 50,929,701,580.95
  5. Step 5: Solve for x
    x = 50,929,701,580.95/253,215.02
  6. Step 6: Final answer
    x = 201,132.23

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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.