Home / 209,030.40-288,460.80-113,536.32

Finding the Fourth Proportional to 209,030.40, 288,460.80 and 113,536.32

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Solution

The fourth proportional to 209,030.40, 288,460.80 and 113,536.32 is: 156,679.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,030.40 : 288,460.80 = 113,536.32 : x
  2. Step 2: Convert to fraction form
    209,030.40/288,460.80 = 113,536.32/x
  3. Step 3: Cross multiply
    209,030.40x = 288,460.80 × 113,536.32
  4. Step 4: Simplify right side
    209,030.40x = 32,750,777,696.26
  5. Step 5: Solve for x
    x = 32,750,777,696.26/209,030.40
  6. Step 6: Final answer
    x = 156,679.50

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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.