Home / 210,835.08-290,779.20-150,386.40

Finding the Fourth Proportional to 210,835.08, 290,779.20 and 150,386.40

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Solution

The fourth proportional to 210,835.08, 290,779.20 and 150,386.40 is: 207,409.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,835.08 : 290,779.20 = 150,386.40 : x
  2. Step 2: Convert to fraction form
    210,835.08/290,779.20 = 150,386.40/x
  3. Step 3: Cross multiply
    210,835.08x = 290,779.20 × 150,386.40
  4. Step 4: Simplify right side
    210,835.08x = 43,729,237,082.88
  5. Step 5: Solve for x
    x = 43,729,237,082.88/210,835.08
  6. Step 6: Final answer
    x = 207,409.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.