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Finding the Fourth Proportional to 487,088.04, 672,152.54 and 269,283.68

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Solution

The fourth proportional to 487,088.04, 672,152.54 and 269,283.68 is: 371,595.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,088.04 : 672,152.54 = 269,283.68 : x
  2. Step 2: Convert to fraction form
    487,088.04/672,152.54 = 269,283.68/x
  3. Step 3: Cross multiply
    487,088.04x = 672,152.54 × 269,283.68
  4. Step 4: Simplify right side
    487,088.04x = 180,999,704,785.37
  5. Step 5: Solve for x
    x = 180,999,704,785.37/487,088.04
  6. Step 6: Final answer
    x = 371,595.46

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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.