Home / 296,688.08-444,897-128,128.16

Finding the Fourth Proportional to 296,688.08, 444,897 and 128,128.16

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Solution

The fourth proportional to 296,688.08, 444,897 and 128,128.16 is: 192,133.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,688.08 : 444,897 = 128,128.16 : x
  2. Step 2: Convert to fraction form
    296,688.08/444,897 = 128,128.16/x
  3. Step 3: Cross multiply
    296,688.08x = 444,897 × 128,128.16
  4. Step 4: Simplify right side
    296,688.08x = 57,003,833,999.52
  5. Step 5: Solve for x
    x = 57,003,833,999.52/296,688.08
  6. Step 6: Final answer
    x = 192,133.89

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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.