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Finding the Fourth Proportional to 423,455.56, 634,700.16 and 170,574.22

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Solution

The fourth proportional to 423,455.56, 634,700.16 and 170,574.22 is: 255,666.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,455.56 : 634,700.16 = 170,574.22 : x
  2. Step 2: Convert to fraction form
    423,455.56/634,700.16 = 170,574.22/x
  3. Step 3: Cross multiply
    423,455.56x = 634,700.16 × 170,574.22
  4. Step 4: Simplify right side
    423,455.56x = 108,263,484,725.88
  5. Step 5: Solve for x
    x = 108,263,484,725.88/423,455.56
  6. Step 6: Final answer
    x = 255,666.70

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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.