Home / 209,025.72-288,459.28-118,381.32

Finding the Fourth Proportional to 209,025.72, 288,459.28 and 118,381.32

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Solution

The fourth proportional to 209,025.72, 288,459.28 and 118,381.32 is: 163,368.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,025.72 : 288,459.28 = 118,381.32 : x
  2. Step 2: Convert to fraction form
    209,025.72/288,459.28 = 118,381.32/x
  3. Step 3: Cross multiply
    209,025.72x = 288,459.28 × 118,381.32
  4. Step 4: Simplify right side
    209,025.72x = 34,148,190,332.65
  5. Step 5: Solve for x
    x = 34,148,190,332.65/209,025.72
  6. Step 6: Final answer
    x = 163,368.37

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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.