Home / 210,253.36-315,430.24-70,013.20

Finding the Fourth Proportional to 210,253.36, 315,430.24 and 70,013.20

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Solution

The fourth proportional to 210,253.36, 315,430.24 and 70,013.20 is: 105,036.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,253.36 : 315,430.24 = 70,013.20 : x
  2. Step 2: Convert to fraction form
    210,253.36/315,430.24 = 70,013.20/x
  3. Step 3: Cross multiply
    210,253.36x = 315,430.24 × 70,013.20
  4. Step 4: Simplify right side
    210,253.36x = 22,084,280,479.17
  5. Step 5: Solve for x
    x = 22,084,280,479.17/210,253.36
  6. Step 6: Final answer
    x = 105,036.52

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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.