Home / 210,036.20-315,054.30-207,271.40

Finding the Fourth Proportional to 210,036.20, 315,054.30 and 207,271.40

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Solution

The fourth proportional to 210,036.20, 315,054.30 and 207,271.40 is: 310,907.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,036.20 : 315,054.30 = 207,271.40 : x
  2. Step 2: Convert to fraction form
    210,036.20/315,054.30 = 207,271.40/x
  3. Step 3: Cross multiply
    210,036.20x = 315,054.30 × 207,271.40
  4. Step 4: Simplify right side
    210,036.20x = 65,301,745,837.02
  5. Step 5: Solve for x
    x = 65,301,745,837.02/210,036.20
  6. Step 6: Final answer
    x = 310,907.10

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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.