Home / 210,637.16-290,699.34-115,158.32

Finding the Fourth Proportional to 210,637.16, 290,699.34 and 115,158.32

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Solution

The fourth proportional to 210,637.16, 290,699.34 and 115,158.32 is: 158,929.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,637.16 : 290,699.34 = 115,158.32 : x
  2. Step 2: Convert to fraction form
    210,637.16/290,699.34 = 115,158.32/x
  3. Step 3: Cross multiply
    210,637.16x = 290,699.34 × 115,158.32
  4. Step 4: Simplify right side
    210,637.16x = 33,476,447,619.51
  5. Step 5: Solve for x
    x = 33,476,447,619.51/210,637.16
  6. Step 6: Final answer
    x = 158,929.45

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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.