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Finding the Fourth Proportional to 249,172.21, 343,852.77 and 135,995.77

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Solution

The fourth proportional to 249,172.21, 343,852.77 and 135,995.77 is: 187,671.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,172.21 : 343,852.77 = 135,995.77 : x
  2. Step 2: Convert to fraction form
    249,172.21/343,852.77 = 135,995.77/x
  3. Step 3: Cross multiply
    249,172.21x = 343,852.77 × 135,995.77
  4. Step 4: Simplify right side
    249,172.21x = 46,762,522,222.78
  5. Step 5: Solve for x
    x = 46,762,522,222.78/249,172.21
  6. Step 6: Final answer
    x = 187,671.50

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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.