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Finding the Fourth Proportional to 423,262.64, 634,887 and 170,537

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Solution

The fourth proportional to 423,262.64, 634,887 and 170,537 is: 255,802.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,262.64 : 634,887 = 170,537 : x
  2. Step 2: Convert to fraction form
    423,262.64/634,887 = 170,537/x
  3. Step 3: Cross multiply
    423,262.64x = 634,887 × 170,537
  4. Step 4: Simplify right side
    423,262.64x = 108,271,724,319
  5. Step 5: Solve for x
    x = 108,271,724,319/423,262.64
  6. Step 6: Final answer
    x = 255,802.70

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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.