Home / 249,739.48-344,630.31-142,300.40

Finding the Fourth Proportional to 249,739.48, 344,630.31 and 142,300.40

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Solution

The fourth proportional to 249,739.48, 344,630.31 and 142,300.40 is: 196,368.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,739.48 : 344,630.31 = 142,300.40 : x
  2. Step 2: Convert to fraction form
    249,739.48/344,630.31 = 142,300.40/x
  3. Step 3: Cross multiply
    249,739.48x = 344,630.31 × 142,300.40
  4. Step 4: Simplify right side
    249,739.48x = 49,041,030,965.12
  5. Step 5: Solve for x
    x = 49,041,030,965.12/249,739.48
  6. Step 6: Final answer
    x = 196,368.76

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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.