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Finding the Fourth Proportional to 370,038.34, 555,016.20 and 103,809.16

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Solution

The fourth proportional to 370,038.34, 555,016.20 and 103,809.16 is: 155,702.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,038.34 : 555,016.20 = 103,809.16 : x
  2. Step 2: Convert to fraction form
    370,038.34/555,016.20 = 103,809.16/x
  3. Step 3: Cross multiply
    370,038.34x = 555,016.20 × 103,809.16
  4. Step 4: Simplify right side
    370,038.34x = 57,615,765,508.39
  5. Step 5: Solve for x
    x = 57,615,765,508.39/370,038.34
  6. Step 6: Final answer
    x = 155,702.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.