Home / 423,020.61-634,383.09-170,235.50

Finding the Fourth Proportional to 423,020.61, 634,383.09 and 170,235.50

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Solution

The fourth proportional to 423,020.61, 634,383.09 and 170,235.50 is: 255,293.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,020.61 : 634,383.09 = 170,235.50 : x
  2. Step 2: Convert to fraction form
    423,020.61/634,383.09 = 170,235.50/x
  3. Step 3: Cross multiply
    423,020.61x = 634,383.09 × 170,235.50
  4. Step 4: Simplify right side
    423,020.61x = 107,994,519,345.78
  5. Step 5: Solve for x
    x = 107,994,519,345.78/423,020.61
  6. Step 6: Final answer
    x = 255,293.75

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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.