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Finding the Fourth Proportional to 268,397.82, 370,389.76 and 153,678.24

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Solution

The fourth proportional to 268,397.82, 370,389.76 and 153,678.24 is: 212,076.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,397.82 : 370,389.76 = 153,678.24 : x
  2. Step 2: Convert to fraction form
    268,397.82/370,389.76 = 153,678.24/x
  3. Step 3: Cross multiply
    268,397.82x = 370,389.76 × 153,678.24
  4. Step 4: Simplify right side
    268,397.82x = 56,920,846,430.82
  5. Step 5: Solve for x
    x = 56,920,846,430.82/268,397.82
  6. Step 6: Final answer
    x = 212,076.41

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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.