Home / 205,547.10-308,320.65-57,783.90

Finding the Fourth Proportional to 205,547.10, 308,320.65 and 57,783.90

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Solution

The fourth proportional to 205,547.10, 308,320.65 and 57,783.90 is: 86,675.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,547.10 : 308,320.65 = 57,783.90 : x
  2. Step 2: Convert to fraction form
    205,547.10/308,320.65 = 57,783.90/x
  3. Step 3: Cross multiply
    205,547.10x = 308,320.65 × 57,783.90
  4. Step 4: Simplify right side
    205,547.10x = 17,815,969,607.54
  5. Step 5: Solve for x
    x = 17,815,969,607.54/205,547.10
  6. Step 6: Final answer
    x = 86,675.85

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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.