Home / 208,384.73-287,570.90-112,891.40

Finding the Fourth Proportional to 208,384.73, 287,570.90 and 112,891.40

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Solution

The fourth proportional to 208,384.73, 287,570.90 and 112,891.40 is: 155,790.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,384.73 : 287,570.90 = 112,891.40 : x
  2. Step 2: Convert to fraction form
    208,384.73/287,570.90 = 112,891.40/x
  3. Step 3: Cross multiply
    208,384.73x = 287,570.90 × 112,891.40
  4. Step 4: Simplify right side
    208,384.73x = 32,464,282,501.42
  5. Step 5: Solve for x
    x = 32,464,282,501.42/208,384.73
  6. Step 6: Final answer
    x = 155,790.12

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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.