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Finding the Fourth Proportional to 249,457.80, 374,235.30 and 99,672.60

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Solution

The fourth proportional to 249,457.80, 374,235.30 and 99,672.60 is: 149,528.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,457.80 : 374,235.30 = 99,672.60 : x
  2. Step 2: Convert to fraction form
    249,457.80/374,235.30 = 99,672.60/x
  3. Step 3: Cross multiply
    249,457.80x = 374,235.30 × 99,672.60
  4. Step 4: Simplify right side
    249,457.80x = 37,301,005,362.78
  5. Step 5: Solve for x
    x = 37,301,005,362.78/249,457.80
  6. Step 6: Final answer
    x = 149,528.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.