Home / 262,430.48-393,643.10-120,235.40

Finding the Fourth Proportional to 262,430.48, 393,643.10 and 120,235.40

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Solution

The fourth proportional to 262,430.48, 393,643.10 and 120,235.40 is: 180,351.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,430.48 : 393,643.10 = 120,235.40 : x
  2. Step 2: Convert to fraction form
    262,430.48/393,643.10 = 120,235.40/x
  3. Step 3: Cross multiply
    262,430.48x = 393,643.10 × 120,235.40
  4. Step 4: Simplify right side
    262,430.48x = 47,329,835,585.74
  5. Step 5: Solve for x
    x = 47,329,835,585.74/262,430.48
  6. Step 6: Final answer
    x = 180,351.90

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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.