Home / 612,050.18-918,074.55-212,690.98

Finding the Fourth Proportional to 612,050.18, 918,074.55 and 212,690.98

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Solution

The fourth proportional to 612,050.18, 918,074.55 and 212,690.98 is: 319,036.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,050.18 : 918,074.55 = 212,690.98 : x
  2. Step 2: Convert to fraction form
    612,050.18/918,074.55 = 212,690.98/x
  3. Step 3: Cross multiply
    612,050.18x = 918,074.55 × 212,690.98
  4. Step 4: Simplify right side
    612,050.18x = 195,266,177,697.74
  5. Step 5: Solve for x
    x = 195,266,177,697.74/612,050.18
  6. Step 6: Final answer
    x = 319,036.23

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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.