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Finding the Fourth Proportional to 266,417.51, 399,783.87 and 98,056.08

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Solution

The fourth proportional to 266,417.51, 399,783.87 and 98,056.08 is: 147,142.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,417.51 : 399,783.87 = 98,056.08 : x
  2. Step 2: Convert to fraction form
    266,417.51/399,783.87 = 98,056.08/x
  3. Step 3: Cross multiply
    266,417.51x = 399,783.87 × 98,056.08
  4. Step 4: Simplify right side
    266,417.51x = 39,201,239,139.43
  5. Step 5: Solve for x
    x = 39,201,239,139.43/266,417.51
  6. Step 6: Final answer
    x = 147,142.13

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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.