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Finding the Fourth Proportional to 523,547.18, 785,360.55 and 203,561.57

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Solution

The fourth proportional to 523,547.18, 785,360.55 and 203,561.57 is: 305,357.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,547.18 : 785,360.55 = 203,561.57 : x
  2. Step 2: Convert to fraction form
    523,547.18/785,360.55 = 203,561.57/x
  3. Step 3: Cross multiply
    523,547.18x = 785,360.55 × 203,561.57
  4. Step 4: Simplify right side
    523,547.18x = 159,869,226,574.06
  5. Step 5: Solve for x
    x = 159,869,226,574.06/523,547.18
  6. Step 6: Final answer
    x = 305,357.82

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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.