Home / 209,172.02-288,651.40-118,557.27

Finding the Fourth Proportional to 209,172.02, 288,651.40 and 118,557.27

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Solution

The fourth proportional to 209,172.02, 288,651.40 and 118,557.27 is: 163,605.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,172.02 : 288,651.40 = 118,557.27 : x
  2. Step 2: Convert to fraction form
    209,172.02/288,651.40 = 118,557.27/x
  3. Step 3: Cross multiply
    209,172.02x = 288,651.40 × 118,557.27
  4. Step 4: Simplify right side
    209,172.02x = 34,221,721,669.28
  5. Step 5: Solve for x
    x = 34,221,721,669.28/209,172.02
  6. Step 6: Final answer
    x = 163,605.64

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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.