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Finding the Fourth Proportional to 268,407.63, 370,398.15 and 147,549.51

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Solution

The fourth proportional to 268,407.63, 370,398.15 and 147,549.51 is: 203,615.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,407.63 : 370,398.15 = 147,549.51 : x
  2. Step 2: Convert to fraction form
    268,407.63/370,398.15 = 147,549.51/x
  3. Step 3: Cross multiply
    268,407.63x = 370,398.15 × 147,549.51
  4. Step 4: Simplify right side
    268,407.63x = 54,652,065,537.41
  5. Step 5: Solve for x
    x = 54,652,065,537.41/268,407.63
  6. Step 6: Final answer
    x = 203,615.92

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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.