Home / 249,619.36-344,655.12-154,256.80

Finding the Fourth Proportional to 249,619.36, 344,655.12 and 154,256.80

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Solution

The fourth proportional to 249,619.36, 344,655.12 and 154,256.80 is: 212,985.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,619.36 : 344,655.12 = 154,256.80 : x
  2. Step 2: Convert to fraction form
    249,619.36/344,655.12 = 154,256.80/x
  3. Step 3: Cross multiply
    249,619.36x = 344,655.12 × 154,256.80
  4. Step 4: Simplify right side
    249,619.36x = 53,165,395,914.82
  5. Step 5: Solve for x
    x = 53,165,395,914.82/249,619.36
  6. Step 6: Final answer
    x = 212,985.87

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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.