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Finding the Fourth Proportional to 268,434.88, 370,430.69 and 147,575.28

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Solution

The fourth proportional to 268,434.88, 370,430.69 and 147,575.28 is: 203,648.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,434.88 : 370,430.69 = 147,575.28 : x
  2. Step 2: Convert to fraction form
    268,434.88/370,430.69 = 147,575.28/x
  3. Step 3: Cross multiply
    268,434.88x = 370,430.69 × 147,575.28
  4. Step 4: Simplify right side
    268,434.88x = 54,666,412,797.34
  5. Step 5: Solve for x
    x = 54,666,412,797.34/268,434.88
  6. Step 6: Final answer
    x = 203,648.69

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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.