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Finding the Fourth Proportional to 291,700.77, 402,544.67 and 162,637.71

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Solution

The fourth proportional to 291,700.77, 402,544.67 and 162,637.71 is: 224,438.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,700.77 : 402,544.67 = 162,637.71 : x
  2. Step 2: Convert to fraction form
    291,700.77/402,544.67 = 162,637.71/x
  3. Step 3: Cross multiply
    291,700.77x = 402,544.67 × 162,637.71
  4. Step 4: Simplify right side
    291,700.77x = 65,468,943,301.51
  5. Step 5: Solve for x
    x = 65,468,943,301.51/291,700.77
  6. Step 6: Final answer
    x = 224,438.71

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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.