Home / 268,557.40-370,580.16-155,359

Finding the Fourth Proportional to 268,557.40, 370,580.16 and 155,359

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Solution

The fourth proportional to 268,557.40, 370,580.16 and 155,359 is: 214,378.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,557.40 : 370,580.16 = 155,359 : x
  2. Step 2: Convert to fraction form
    268,557.40/370,580.16 = 155,359/x
  3. Step 3: Cross multiply
    268,557.40x = 370,580.16 × 155,359
  4. Step 4: Simplify right side
    268,557.40x = 57,572,963,077.44
  5. Step 5: Solve for x
    x = 57,572,963,077.44/268,557.40
  6. Step 6: Final answer
    x = 214,378.61

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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.