Home / 208,985.82-288,418.23-118,357.62

Finding the Fourth Proportional to 208,985.82, 288,418.23 and 118,357.62

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Solution

The fourth proportional to 208,985.82, 288,418.23 and 118,357.62 is: 163,343.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,985.82 : 288,418.23 = 118,357.62 : x
  2. Step 2: Convert to fraction form
    208,985.82/288,418.23 = 118,357.62/x
  3. Step 3: Cross multiply
    208,985.82x = 288,418.23 × 118,357.62
  4. Step 4: Simplify right side
    208,985.82x = 34,136,495,267.41
  5. Step 5: Solve for x
    x = 34,136,495,267.41/208,985.82
  6. Step 6: Final answer
    x = 163,343.60

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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.