Home / 209,102.87-288,552.55-118,456.98

Finding the Fourth Proportional to 209,102.87, 288,552.55 and 118,456.98

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Solution

The fourth proportional to 209,102.87, 288,552.55 and 118,456.98 is: 163,465.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,102.87 : 288,552.55 = 118,456.98 : x
  2. Step 2: Convert to fraction form
    209,102.87/288,552.55 = 118,456.98/x
  3. Step 3: Cross multiply
    209,102.87x = 288,552.55 × 118,456.98
  4. Step 4: Simplify right side
    209,102.87x = 34,181,064,444.46
  5. Step 5: Solve for x
    x = 34,181,064,444.46/209,102.87
  6. Step 6: Final answer
    x = 163,465.31

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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.