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Finding the Fourth Proportional to 163,648.86, 245,473.32 and 45,320.22

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Solution

The fourth proportional to 163,648.86, 245,473.32 and 45,320.22 is: 67,980.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,648.86 : 245,473.32 = 45,320.22 : x
  2. Step 2: Convert to fraction form
    163,648.86/245,473.32 = 45,320.22/x
  3. Step 3: Cross multiply
    163,648.86x = 245,473.32 × 45,320.22
  4. Step 4: Simplify right side
    163,648.86x = 11,124,904,866.53
  5. Step 5: Solve for x
    x = 11,124,904,866.53/163,648.86
  6. Step 6: Final answer
    x = 67,980.34

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1.5x scale

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.