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Finding the Fourth Proportional to 249,707.40, 374,561.10 and 100,019.40

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Solution

The fourth proportional to 249,707.40, 374,561.10 and 100,019.40 is: 150,029.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,707.40 : 374,561.10 = 100,019.40 : x
  2. Step 2: Convert to fraction form
    249,707.40/374,561.10 = 100,019.40/x
  3. Step 3: Cross multiply
    249,707.40x = 374,561.10 × 100,019.40
  4. Step 4: Simplify right side
    249,707.40x = 37,463,376,485.34
  5. Step 5: Solve for x
    x = 37,463,376,485.34/249,707.40
  6. Step 6: Final answer
    x = 150,029.10

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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.