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Finding the Fourth Proportional to 166,420.40, 249,323.40 and 155,361.20

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Solution

The fourth proportional to 166,420.40, 249,323.40 and 155,361.20 is: 232,755.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,420.40 : 249,323.40 = 155,361.20 : x
  2. Step 2: Convert to fraction form
    166,420.40/249,323.40 = 155,361.20/x
  3. Step 3: Cross multiply
    166,420.40x = 249,323.40 × 155,361.20
  4. Step 4: Simplify right side
    166,420.40x = 38,735,182,612.08
  5. Step 5: Solve for x
    x = 38,735,182,612.08/166,420.40
  6. Step 6: Final answer
    x = 232,755.01

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1.5x scale

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.