Home / 291,901.15-402,823.34-157,765.15

Finding the Fourth Proportional to 291,901.15, 402,823.34 and 157,765.15

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Solution

The fourth proportional to 291,901.15, 402,823.34 and 157,765.15 is: 217,715.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,901.15 : 402,823.34 = 157,765.15 : x
  2. Step 2: Convert to fraction form
    291,901.15/402,823.34 = 157,765.15/x
  3. Step 3: Cross multiply
    291,901.15x = 402,823.34 × 157,765.15
  4. Step 4: Simplify right side
    291,901.15x = 63,551,484,658.60
  5. Step 5: Solve for x
    x = 63,551,484,658.60/291,901.15
  6. Step 6: Final answer
    x = 217,715.77

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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.