Home / 253,219.90-349,440.62-138,501.84

Finding the Fourth Proportional to 253,219.90, 349,440.62 and 138,501.84

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Solution

The fourth proportional to 253,219.90, 349,440.62 and 138,501.84 is: 191,130.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,219.90 : 349,440.62 = 138,501.84 : x
  2. Step 2: Convert to fraction form
    253,219.90/349,440.62 = 138,501.84/x
  3. Step 3: Cross multiply
    253,219.90x = 349,440.62 × 138,501.84
  4. Step 4: Simplify right side
    253,219.90x = 48,398,168,840.74
  5. Step 5: Solve for x
    x = 48,398,168,840.74/253,219.90
  6. Step 6: Final answer
    x = 191,130.98

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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.