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Finding the Fourth Proportional to 403,547.42, 556,920.72 and 222,259.31

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Solution

The fourth proportional to 403,547.42, 556,920.72 and 222,259.31 is: 306,731.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,547.42 : 556,920.72 = 222,259.31 : x
  2. Step 2: Convert to fraction form
    403,547.42/556,920.72 = 222,259.31/x
  3. Step 3: Cross multiply
    403,547.42x = 556,920.72 × 222,259.31
  4. Step 4: Simplify right side
    403,547.42x = 123,780,811,056.00
  5. Step 5: Solve for x
    x = 123,780,811,056.00/403,547.42
  6. Step 6: Final answer
    x = 306,731.77

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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.