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Finding the Fourth Proportional to 291,673.80, 402,510.06 and 157,537.80

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Solution

The fourth proportional to 291,673.80, 402,510.06 and 157,537.80 is: 217,402.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,673.80 : 402,510.06 = 157,537.80 : x
  2. Step 2: Convert to fraction form
    291,673.80/402,510.06 = 157,537.80/x
  3. Step 3: Cross multiply
    291,673.80x = 402,510.06 × 157,537.80
  4. Step 4: Simplify right side
    291,673.80x = 63,410,549,330.27
  5. Step 5: Solve for x
    x = 63,410,549,330.27/291,673.80
  6. Step 6: Final answer
    x = 217,402.28

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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.