Home / 209,270.45-288,803.10-118,628.18

Finding the Fourth Proportional to 209,270.45, 288,803.10 and 118,628.18

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Solution

The fourth proportional to 209,270.45, 288,803.10 and 118,628.18 is: 163,712.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,270.45 : 288,803.10 = 118,628.18 : x
  2. Step 2: Convert to fraction form
    209,270.45/288,803.10 = 118,628.18/x
  3. Step 3: Cross multiply
    209,270.45x = 288,803.10 × 118,628.18
  4. Step 4: Simplify right side
    209,270.45x = 34,260,185,547.93
  5. Step 5: Solve for x
    x = 34,260,185,547.93/209,270.45
  6. Step 6: Final answer
    x = 163,712.49

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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.