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Finding the Fourth Proportional to 245,345.04, 368,095.32 and 87,570

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Solution

The fourth proportional to 245,345.04, 368,095.32 and 87,570 is: 131,382.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,345.04 : 368,095.32 = 87,570 : x
  2. Step 2: Convert to fraction form
    245,345.04/368,095.32 = 87,570/x
  3. Step 3: Cross multiply
    245,345.04x = 368,095.32 × 87,570
  4. Step 4: Simplify right side
    245,345.04x = 32,234,107,172.40
  5. Step 5: Solve for x
    x = 32,234,107,172.40/245,345.04
  6. Step 6: Final answer
    x = 131,382.75

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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.