Home / 356,108.36-534,215.32-103,390.92

Finding the Fourth Proportional to 356,108.36, 534,215.32 and 103,390.92

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Solution

The fourth proportional to 356,108.36, 534,215.32 and 103,390.92 is: 155,101.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,108.36 : 534,215.32 = 103,390.92 : x
  2. Step 2: Convert to fraction form
    356,108.36/534,215.32 = 103,390.92/x
  3. Step 3: Cross multiply
    356,108.36x = 534,215.32 × 103,390.92
  4. Step 4: Simplify right side
    356,108.36x = 55,233,013,412.89
  5. Step 5: Solve for x
    x = 55,233,013,412.89/356,108.36
  6. Step 6: Final answer
    x = 155,101.70

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1.5x scale

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.