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Finding the Fourth Proportional to 404,628.81, 558,387.81 and 223,340.79

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Solution

The fourth proportional to 404,628.81, 558,387.81 and 223,340.79 is: 308,210.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,628.81 : 558,387.81 = 223,340.79 : x
  2. Step 2: Convert to fraction form
    404,628.81/558,387.81 = 223,340.79/x
  3. Step 3: Cross multiply
    404,628.81x = 558,387.81 × 223,340.79
  4. Step 4: Simplify right side
    404,628.81x = 124,710,773,495.07
  5. Step 5: Solve for x
    x = 124,710,773,495.07/404,628.81
  6. Step 6: Final answer
    x = 308,210.32

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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.