Home / 235,433.40-353,150.10-145,547.70

Finding the Fourth Proportional to 235,433.40, 353,150.10 and 145,547.70

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Solution

The fourth proportional to 235,433.40, 353,150.10 and 145,547.70 is: 218,321.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,433.40 : 353,150.10 = 145,547.70 : x
  2. Step 2: Convert to fraction form
    235,433.40/353,150.10 = 145,547.70/x
  3. Step 3: Cross multiply
    235,433.40x = 353,150.10 × 145,547.70
  4. Step 4: Simplify right side
    235,433.40x = 51,400,184,809.77
  5. Step 5: Solve for x
    x = 51,400,184,809.77/235,433.40
  6. Step 6: Final answer
    x = 218,321.55

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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.